Question: What drug, that is partially comprised of oxygen, has the lowest combustion flash point?
Paraphrase: What drug,that has the lowest combustion flash point, is partially comprised of oxygen?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q12140 . ?ent wdt:P2199 ?obj . ?ent wdt:P527 wd:Q629} ORDER BY ASC(?obj)LIMIT 5 
Answer: benzyl benzoate, benzoic acid